You need an occlusion blueprint.
The Superliners in the P42DC pack don't seem to have one, so if I recall correctly you will hear all sounds of type "Inside" or "Both", and none of the sounds of type "Outside".
Here's what the dev docs (8.01 Audio control and blueprints) say about them:
3.4.2 Passenger Carriage Occlusion
This is used to control how much the sound is occluded (or muffled) when you are inside the
passenger carriage, basically it is used to decrease the amount of high frequency content. It
won’t effect any sounds which are marked as INSIDE in the passenger/wagon blueprint
controlled loops and oneshots.
Refer to the document EAX4 Sound Designer's Guide (A4).pdf for descriptions of these
values.
Of course there is no such document as EAX4 Sound Designer's Guide (A4).pdf .
What everyone does is use the default Kuju passenger blueprint.
To use it, open your passenger car blueprint in RW-Tools, find the <CarriageInteriorInterface> section, inside of which there is an empty <CabOcclusion> section.
Replace this section with the following:
- Code: Select all
<CabOcclusion>
<iBlueprintLibrary-cAbsoluteBlueprintID>
<BlueprintSetID>
<iBlueprintLibrary-cBlueprintSetID>
<Provider d:type="cDeltaString">Kuju</Provider>
<Product d:type="cDeltaString">RailSimulatorUS</Product>
</iBlueprintLibrary-cBlueprintSetID>
</BlueprintSetID>
<BlueprintID d:type="cDeltaString">Audio\RailVehicles\Wagons\Passenger Carriage Occlusion.xml</BlueprintID>
</iBlueprintLibrary-cAbsoluteBlueprintID>
</CabOcclusion>
Make sure to replace the entire section inclusing opening and closing tags.
If you don't like the result, then you can copy the Kuju occlusion blueprint to your wagon folder, change the section above accordingly, then start experimenting with the values in the occlusion blueprint, which are undocumented.